init

license

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+MIT License
+Copyright (c) 2017 stephen mcquay
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

main.go

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+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+
+	"mcquay.me/ostat"
+)
+
+var dots = flag.Bool("dots", false, "print dots")
+
+func main() {
+	flag.Parse()
+	ps := ostat.NewPopulationStat()
+	s := bufio.NewScanner(os.Stdin)
+	for s.Scan() {
+		f, err := strconv.ParseFloat(strings.TrimSpace(s.Text()), 64)
+		if err != nil {
+			log.Printf("%+v", err)
+			continue
+		}
+		ps.Push(f)
+	}
+	l, u := ps.CI()
+	fmt.Printf("n: %d, min: %0.0f, avg: %0.4f, max: %0.0f, std: %0.4f, CI: (%f, %f)\n", ps.N(), ps.Min, ps.Mean(), ps.Max, ps.StdDev(), l, u)
+}

readme.txt

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+report stats for floats sent on stdin